<header id="header" class="hidden-xs" style="background-image: url('http://www.encontrodemeioambiente.com.br/img/logo2.jpg')">
            <div class="container">
                <div id="header-title">
                   
                    <?php $image_properties = array('src' => 'img/logo.png','alt' => 'logo do evento','class' => '',
                                    'width' => '938',
                                    'height' => '272',
                                    'title' => 'logo do evento',);                                    
                   echo anchor(base_url()."principalcontroller",img($image_properties),array('title'=>'home')); 
                   ?>                   
                </div>
                <div id="social-header" class="hidden-xs">
                    <a href="https://twitter.com/EMA_UNAVIDA" class="social-icon soc-twitter animated fadeInDown animation-delay-1" target="_blank"><i class="fa fa-twitter"></i></a>
                    <a href="http://www.facebook.com/ema.unavida" class="social-icon soc-facebook animated fadeInDown animation-delay-3" target="_blank"><i class="fa fa-facebook"></i></a>
                </div>               
            </div> <!-- container -->
        </header> <!-- header -->